scholarly journals Overview of Department of Energy initiatives concerning industrial boiler new source performance standards

1979 ◽  
Author(s):  
M.J. Connolly ◽  
T. Surles
Author(s):  
Jon Wilda ◽  
Joe Cochran

As petroleum resources become more costly and less plentiful, alternative forms of energy are being considered. Composite fuels, of which coal-oil mixtures is the most common, have received relatively minor attention until now even though it is the one alternative utilizing existing technology. Industrial boiler demonstrations of COM fuel are being performed by the Department of Energy and a number of private firms. Ideally, COM can be handled by the same equipment currently used by No. 6 oil systems. Environmental and operating problems occur, due to the coal portion of the mixture, but these are being quickly resolved. Paper published with permission.


Author(s):  
P. W. Pillsbury ◽  
R. L. Bannister ◽  
R. C. Diehl ◽  
P. J. Loftus

Westinghouse Electric Corporation and Avco Research Lab/TEXTRON have been working for three years on a Department of Energy program to establish the technology required for commercially viable direct coal-fueled utility-size gas turbine combined cycles. These plants are to meet the EPA’s New Source Performance Standards for coal-fired steam generators and to generate power at a favorable cost-of-electricity relative to steam plants with flue gas desulfurization. Economic projections indicate that the latter goal is achievable by a method of approach which uses inexpensive utility-grade coal, and removes the resulting sulfur and ash through use of a slagging combustor in the gas turbine cycle. High pressure, subscale slagging combustor tests have been underway for several months at Avco Research Laboratory and are encouraging. Experimental highlights are shown here.


Author(s):  
R. L. Bannister ◽  
D. J. Amos ◽  
A. J. Scalzo ◽  
S. C. Datsko

The U.S. Department of Energy/Pittsburgh Energy Technology Center (DOE/PETC) initiated the Engineering Development of Coal-Fired High Performance Power Generation Systems Program to develop an advanced technology for coal-fired electric plants that can boost efficiency and reduce emissions. This three phase program includes concept definition and preliminary R&D, engineering development and testing which will culminate in the operation of a prototype plant by the year 2005. This paper presents an overview of the work proposed by a Westinghouse-led R&D team which includes Babcock and Wilcox, Black and Veatch, FluiDyne Engineering, and Allegheny Power Systems to design and evaluate the technical and economic feasibility and relevant R&D required for one or more advanced power generation concepts developed during Phase I. Allison Division of General Motors, ERC and SeiTec are also supporting the Westinghouse team in the initial phase of this program. Key objectives include evaluation of plant cycle designs capable of at least 47-percent efficiency, substantial reductions in airborne emissions below current new source performance standards (NSPS) for coal-fired boilers, and solid waste generation of only benign material. The proposed design approach includes an indirect coal-fired combustion turbine combined cycle system which incorporates a high-temperature advanced furnace with ceramic heat exchanger components. The indirect-fired system circumvents some of the technical challenges of a direct coal-fired system (Bannister et al., 1990). Proposed alternative designs have plant efficiencies that range up to 53 percent.


Author(s):  
R. L. Bannister ◽  
B. C. Wiant ◽  
R. C. Diehl ◽  
H. M. Eppich ◽  
A. R. Jensen ◽  
...  

A program has been underway since 1986 by Westinghouse Electric Corporation, Textron, Inc., and the sponsoring agency, the Morgantown Energy Technology Center (METC) of the U.S. Department of Energy (DOE), as participants, to establish the technology base for coal-fired combustion turbines targeted for power generation (50 to 150 MW size units). The developed system must be able to burn unbeneficiated, low-cost, utility-grade coal and meet the EPA New Source Performance Standards (NSPS) for coal-fired steam generators (Thoman et al., 1987). Development of a high pressure (12 to 16 atms) slagging combustor is the key to making a direct coal-fired combustion turbine a commercial reality. In testing to date, a 6 atm slagging combustor, rated at 12 MMBtu/hr (12.7 MHkJ/hr) has demonstrated its ability to handle high- and low-sulfur bituminous coals, and low-sulfur subbituminous coal. The program objectives relative to combustion efficiency, combustor exit temperature and pattern factor, NOx emissions, carbon burnout, and slag rejection have been met. Today, Northern States Power, working with Westinghouse with assistance from Textron is developing a plan to commercialize a direct coal-fired advanced combined cycle (DCFACC). Included in this plan is a pilot plant (which does not include a combustion turbine) and a demonstration plant that would utilize a 50 MW combustion turbine. The first commercial DCFACC, which would Include a 100 MW combustion turbine, is scheduled to be operational by the year 2001. The cooperative effort among Northern States Power, Westinghouse, and Textron is financially independent of the work now sponsored by DOE/METC. This paper presents the status of the pressurized slagging combustor development program including recent work to reduce alkali, particulates and SOx levels leaving the combustor and gives an overview of our commercialization process and plan.


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